Safeguard DBG_VALUE handling. Unbreaks the ASAN buildbot.

[oota-llvm.git] / lib / CodeGen / MachineCodeEmitter.cpp

diff --git a/lib/CodeGen/MachineCodeEmitter.cpp b/lib/CodeGen/MachineCodeEmitter.cpp
index 1090d762d7ed182c6e06beeeb17aa2e37a0c4826..81b49784c05237f5e6a7f287c0a6626f110fc794 100644 (file)
--- a/lib/CodeGen/MachineCodeEmitter.cpp
+++ b/lib/CodeGen/MachineCodeEmitter.cpp
@@ -1,176 +1,14 @@
-//===-- MachineCodeEmitter.cpp - Implement the MachineCodeEmitter itf -----===//
+//===-- llvm/CodeGen/MachineCodeEmitter.cpp - Code emission -----*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements the MachineCodeEmitter interface.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 
 #include "llvm/CodeGen/MachineCodeEmitter.h"
-#include "llvm/CodeGen/MachineFunction.h"
-#include "llvm/Function.h"
-#include <fstream>
-#include <iostream>
 
 using namespace llvm;
 
-namespace {
-  struct DebugMachineCodeEmitter : public MachineCodeEmitter {
-    void startFunction(MachineFunction &F) {
-      std::cout << "\n**** Writing machine code for function: "
-                << F.getFunction()->getName() << "\n";
-    }
-    void finishFunction(MachineFunction &F) {
-      std::cout << "\n";
-    }
-    void startFunctionStub(unsigned StubSize) {
-      std::cout << "\n--- Function stub:\n";
-    }
-    void *finishFunctionStub(const Function *F) {
-      std::cout << "\n--- End of stub for Function\n";
-      return 0;
-    }
-
-    void emitByte(unsigned char B) {
-      std::cout << "0x" << std::hex << (unsigned int)B << std::dec << " ";
-    }
-    void emitWord(unsigned W) {
-      std::cout << "0x" << std::hex << W << std::dec << " ";
-    }
-    void emitWordAt(unsigned W, unsigned *Ptr) {
-      std::cout << "0x" << std::hex << W << std::dec << " (at "
-                << (void*) Ptr << ") ";
-    }
-
-    void addRelocation(const MachineRelocation &MR) {
-      std::cout << "<relocation> ";
-    }
-
-    virtual unsigned char* allocateGlobal(unsigned size, unsigned alignment)
-    { return 0; }
-
-    uint64_t getConstantPoolEntryAddress(unsigned Num) { return 0; }
-    uint64_t getCurrentPCValue() { return 0; }
-    uint64_t getCurrentPCOffset() { return 0; }
-  };
-
-  class FilePrinterEmitter : public MachineCodeEmitter {
-    std::ofstream actual;
-    std::ostream &o;
-    MachineCodeEmitter &MCE;
-    unsigned counter;
-    unsigned values[4];
-
-  public:
-    FilePrinterEmitter(MachineCodeEmitter &M, std::ostream &os)
-      : o(os), MCE(M), counter(0) {
-      openActual();
-    }
-
-    ~FilePrinterEmitter() {
-      o << "\n";
-      actual.close();
-    }
-
-    void openActual() {
-      actual.open("lli.actual.obj");
-      if (!actual.good()) {
-        std::cerr << "Cannot open 'lli.actual.obj' for writing\n";
-        abort();
-      }
-    }
-
-    void startFunction(MachineFunction &F) {
-      // resolve any outstanding calls
-      MCE.startFunction(F);
-    }
-    void finishFunction(MachineFunction &F) {
-      MCE.finishFunction(F);
-    }
-
-    void emitConstantPool(MachineConstantPool *MCP) {
-      MCE.emitConstantPool(MCP);
-    }
-
-    void startFunctionStub(unsigned StubSize) {
-      MCE.startFunctionStub(StubSize);
-    }
-
-    void *finishFunctionStub(const Function *F) {
-      return MCE.finishFunctionStub(F);
-    }
-
-    void emitByte(unsigned char B) {
-      MCE.emitByte(B);
-      actual << B; actual.flush();
-
-      values[counter] = (unsigned int) B;
-      if (++counter % 4 == 0 && counter != 0) {
-        o << std::hex;
-        for (unsigned i=0; i<4; ++i) {
-          if (values[i] < 16) o << "0";
-          o << values[i] << " ";
-        }
-
-        o << std::dec << "\t";
-        for (unsigned i=0; i<4; ++i) {
-          for (int j=7; j>=0; --j) {
-            o << ((values[i] >> j) & 1);
-          }
-          o << " ";
-        }
-
-        o << "\n";
-
-        unsigned instr = 0;
-        for (unsigned i=0; i<4; ++i)
-          instr |= values[i] << (i*8);
-
-        o << "--- * --- * --- * --- * ---\n";
-        counter %= 4;
-      }
-    }
-
-    void emitWord(unsigned W) {
-      MCE.emitWord(W);
-    }
-    void emitWordAt(unsigned W, unsigned *Ptr) {
-      MCE.emitWordAt(W, Ptr);
-    }
-    uint64_t getConstantPoolEntryAddress(unsigned Num) {
-      return MCE.getConstantPoolEntryAddress(Num);
-    }
-
-    virtual unsigned char* allocateGlobal(unsigned size, unsigned alignment)
-    { return MCE.allocateGlobal(size, alignment); }
-
-    uint64_t getCurrentPCValue() {
-      return MCE.getCurrentPCValue();
-    }
-    uint64_t getCurrentPCOffset() {
-      return MCE.getCurrentPCOffset();
-    }
-    void addRelocation(const MachineRelocation &MR) {
-      return MCE.addRelocation(MR);
-    }
-  };
-}
-
-/// createDebugMachineCodeEmitter - Return a dynamically allocated machine
-/// code emitter, which just prints the opcodes and fields out the cout.  This
-/// can be used for debugging users of the MachineCodeEmitter interface.
-///
-MachineCodeEmitter *
-MachineCodeEmitter::createDebugEmitter() {
-  return new DebugMachineCodeEmitter();
-}
-
-MachineCodeEmitter *
-MachineCodeEmitter::createFilePrinterEmitter(MachineCodeEmitter &MCE) {
-  return new FilePrinterEmitter(MCE, std::cerr);
-}
+void MachineCodeEmitter::anchor() { }